Come to know the classification of refractory material

Posted by annesheldon on February 3rd, 2017

According to different chemical composition, refractory material can be divided into 3 types: alkaline, acid and neutral refractory material.

Alkaline refractory material: Generally refers to MgO or MgO and CaO as the main composition of refractory material. These refractory raw material have high refractoriness, with strong resistance to basic slag, and main are magnesia and dolomitic. Alkaline refractory materials are used in alkaline steel furnace, non-ferrous metal smelting furnace, cement industrial kiln, converter and electric arc furnace.

Acid refractory material: Usually refer to SiO2 content more than 93%. Its main feather is that it could resist the erosion of acidic slag at high temperature, but it is easy to react with alkaline slag, and it has poor thermal shock resistance. Main are siliceous, semi-siliceous, clay. Acid refractory material are mainly used in coke oven, glass kiln, acid steel furnace, etc.

Neutral refractory material: Refer to the refractory material which is not easy to react with acidic or basic slag, such as clay, high aluminum, carbon, chrome, mullite or corundum refractory material. Neutral refractory material are mainly used in blast furnace, aluminium cell, ferroalloy furnace, molten steel ladle, plating tank, autoclave and so on. There have many kinds of refractory products in our factory. Such as fire brick for sale, refractory nozzle, refractory castable, and so on. When you need any refractory products, welcome to view our website to know more.

Artilce source: http://www.chinafirebrick.com/Company_News_110.html